import 'package:flutter/material.dart';

class MyColumn {
  static Widget columnByAlignment(){
    return Center(
      child: Container(
        color: Colors.black26,
        width: 100,
        height: 400,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceAround,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Container(
              color: Colors.red,
              width: 80,
              height: 80,
            ),
            Container(
              color: Colors.green,
              width: 80,
              height: 80,
            ),
            Container(
              color: Colors.blue,
              width: 80,
              height: 80,
            ),
          ],
        ),
      ),
    );
  }
}